function getJson() {
    return {
        "code": 0,
        "msg": "",
        "count": 16,
        "data": [
            {"id": "001", "username": "张玉林", "sex": "女"},
            {"id": "002", "username": "刘晓军", "sex": "男"},
            {"id": "003", "username": "张恒", "sex": "男"},
            {"id": "004", "username": "朱一", "sex": "男"},
            {"id": "005", "username": "刘佳能", "sex": "女"},
            {"id": "006", "username": "晓梅", "sex": "女"},
            {"id": "007", "username": "马冬梅", "sex": "女"},
            {"id": "008", "username": "刘晓庆", "sex": "女"},
            {"id": "009", "username": "刘晓庆", "sex": "女"},
            {"id": "010", "username": "刘晓庆", "sex": "女"},
            {"id": "011", "username": "刘晓庆", "sex": "女"},
            {"id": "012", "username": "刘晓庆", "sex": "女"},
            {"id": "013", "username": "刘晓庆", "sex": "女"},
            {"id": "014", "username": "刘晓庆", "sex": "女"},
            {"id": "015", "username": "刘晓庆", "sex": "女"},
            {"id": "016", "username": "刘晓庆", "sex": "女"}
        ]
    }
}